Update comment.

CyrusNajmabadi · CyrusNajmabadi · commit 505c1f258f6a · 2015-02-27T13:45:29.000-08:00
diff --git a/src/services/services.ts b/src/services/services.ts
@@ -1732,6 +1732,8 @@ module ts {
 
             // Check with the host if anything actually changed.
             if (entry.sourceFile.version !== version) {
+                // If so, ask the host for what changed between these two versions and then do the 
+                // actual incremental parsing.
                 var textChangeRange = scriptSnapshot.getChangeRange(entry.sourceFile.scriptSnapshot);
                 entry.sourceFile = updateLanguageServiceSourceFile(entry.sourceFile, scriptSnapshot, version, textChangeRange);
             }

Original file line number	Diff line number	Diff line change
`@@ -1732,6 +1732,8 @@ module ts {`
`1732`	`1732`
`1733`	`1733`	`// Check with the host if anything actually changed.`
`1734`	`1734`	`if (entry.sourceFile.version !== version) {`
	`1735`	`+ // If so, ask the host for what changed between these two versions and then do the`
	`1736`	`+ // actual incremental parsing.`
`1735`	`1737`	`var textChangeRange = scriptSnapshot.getChangeRange(entry.sourceFile.scriptSnapshot);`
`1736`	`1738`	`entry.sourceFile = updateLanguageServiceSourceFile(entry.sourceFile, scriptSnapshot, version, textChangeRange);`
`1737`	`1739`	`}`